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doubt with LEFT OUTER JOIN
kumar mr 2013-03-01, 20:13
Hi,
Does LEFT OUTER JOIN returns zero rows when RIGHT SIDE table doesn't have at least one record that matches JOIN condition in Hive?
Regards,
Kumar
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Re: doubt with LEFT OUTER JOIN
Dean Wampler 2013-03-01, 20:23
I just tried an experiment where the right-hand table was empty. It worked
fine. Could you post more details, like the query, create table statements,
etc? What version of Hive?
On Fri, Mar 1, 2013 at 2:13 PM, kumar mr <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Does LEFT OUTER JOIN returns zero rows when RIGHT SIDE table doesn't
> have at least one record that matches JOIN condition in Hive?
>
> Regards,
> Kumar
>
>
--
*Dean Wampler, Ph.D.*
thinkbiganalytics.com
+1-312-339-1330
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Re: doubt with LEFT OUTER JOIN
kumar mr 2013-03-05, 00:35
Regards,
Kumar
-----Original Message-----
From: Dean Wampler <[EMAIL PROTECTED]>
To: user <[EMAIL PROTECTED]>
Sent: Fri, Mar 1, 2013 12:23 pm
Subject: Re: doubt with LEFT OUTER JOIN
I just tried an experiment where the right-hand table was empty. It worked fine. Could you post more details, like the query, create table statements, etc? What version of Hive?
On Fri, Mar 1, 2013 at 2:13 PM, kumar mr <[EMAIL PROTECTED]> wrote:
Hi,
Does LEFT OUTER JOIN returns zero rows when RIGHT SIDE table doesn't have at least one record that matches JOIN condition in Hive?
Regards,
Kumar
--
Dean Wampler, Ph.D.
thinkbiganalytics.com
+1-312-339-1330
-
Re: doubt with LEFT OUTER JOIN
kumar mr 2013-03-05, 00:38
Hi dean,
Are there any known issues if we do LEFT OUTER JOIN between different table formats like Text and RCfile? Here the tables are of different format types.
Regards,
Kumar
-----Original Message-----
From: Dean Wampler <[EMAIL PROTECTED]>
To: user <[EMAIL PROTECTED]>
Sent: Fri, Mar 1, 2013 12:23 pm
Subject: Re: doubt with LEFT OUTER JOIN
I just tried an experiment where the right-hand table was empty. It worked fine. Could you post more details, like the query, create table statements, etc? What version of Hive?
On Fri, Mar 1, 2013 at 2:13 PM, kumar mr <[EMAIL PROTECTED]> wrote:
Hi,
Does LEFT OUTER JOIN returns zero rows when RIGHT SIDE table doesn't have at least one record that matches JOIN condition in Hive?
Regards,
Kumar
--
Dean Wampler, Ph.D.
thinkbiganalytics.com
+1-312-339-1330
-
Re: doubt with LEFT OUTER JOIN
Dean Wampler 2013-03-05, 00:44
None that I know of, but I haven't tried too many cases. Of course, there
shouldn't be ;)
On Mon, Mar 4, 2013 at 6:38 PM, kumar mr <[EMAIL PROTECTED]> wrote:
>
>
> Hi dean,
>
> Are there any known issues if we do LEFT OUTER JOIN between different
> table formats like Text and RCfile? Here the tables are of different format
> types.
>
> Regards,
> Kumar
>
>
>
> -----Original Message-----
> From: Dean Wampler <[EMAIL PROTECTED]>
> To: user <[EMAIL PROTECTED]>
> Sent: Fri, Mar 1, 2013 12:23 pm
> Subject: Re: doubt with LEFT OUTER JOIN
>
> I just tried an experiment where the right-hand table was empty. It
> worked fine. Could you post more details, like the query, create table
> statements, etc? What version of Hive?
>
>
> On Fri, Mar 1, 2013 at 2:13 PM, kumar mr <[EMAIL PROTECTED]> wrote:
>
>> Hi,
>>
>> Does LEFT OUTER JOIN returns zero rows when RIGHT SIDE table doesn't
>> have at least one record that matches JOIN condition in Hive?
>>
>> Regards,
>> Kumar
>>
>>
>
>
> --
> *Dean Wampler, Ph.D.*
> thinkbiganalytics.com
> +1-312-339-1330
>
>
--
*Dean Wampler, Ph.D.*
thinkbiganalytics.com
+1-312-339-1330
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